Home / 38,992,961.70-53,811,968.40-21,589,306.38

Finding the Fourth Proportional to 38,992,961.70, 53,811,968.40 and 21,589,306.38

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Solution

The fourth proportional to 38,992,961.70, 53,811,968.40 and 21,589,306.38 is: 29,794,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992,961.70 : 53,811,968.40 = 21,589,306.38 : x
  2. Step 2: Convert to fraction form
    38,992,961.70/53,811,968.40 = 21,589,306.38/x
  3. Step 3: Cross multiply
    38,992,961.70x = 53,811,968.40 × 21,589,306.38
  4. Step 4: Simplify right side
    38,992,961.70x = 1,161,763,072,698,478.25
  5. Step 5: Solve for x
    x = 1,161,763,072,698,478.25/38,992,961.70
  6. Step 6: Final answer
    x = 29,794,173.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.